Home / 429,883.02-643,835.84-249,521.76

Finding the Fourth Proportional to 429,883.02, 643,835.84 and 249,521.76

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Solution

The fourth proportional to 429,883.02, 643,835.84 and 249,521.76 is: 373,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,883.02 : 643,835.84 = 249,521.76 : x
  2. Step 2: Convert to fraction form
    429,883.02/643,835.84 = 249,521.76/x
  3. Step 3: Cross multiply
    429,883.02x = 643,835.84 × 249,521.76
  4. Step 4: Simplify right side
    429,883.02x = 160,651,051,947.88
  5. Step 5: Solve for x
    x = 160,651,051,947.88/429,883.02
  6. Step 6: Final answer
    x = 373,708.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.